company has the following adjusted trial balance: debit credit cash 300 accounts receivable 500 prepaid rent 100 equipment 6,000 accumulated depreciation-equipment 1,800 accounts payable 400 unearned service revenue 500 common stock 1,400 retained earnings 1,600 service revenue 3,000 interest revenue 100 salaries and wages expense 950 depreciation expense 500 rent expense 450 total 8,800 8,800 after closing entries have been journalized and posted, the balance in the company's retained earnings account will be group of answer choices $2,600. $3,300. $2,800. $1,600. $8,800.